Know Your Environment. Protect Your Health.

Manganese

City of Oak Harbor

Manganese is a naturally occurring element that is common in food and drinking water. Excessive manganese exposures may impair children's attention, memory and intellectual capacity. Click here to read more about manganese.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.54 ppb84ND - 9.80 ppb
20198.64 ppb550.500 ppb - 30.0 ppb
20200.400 ppb110.400 ppb
2021N/A00N/A
2022N/A00N/A
202330.3 ppb21ND - 60.5 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 100 ppb

The EWG Health Guideline of 100 ppb for manganese was defined by the state of Minnesota as a health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the brain and nervous system.

ppb = parts per billion

All test results

Date Lab ID Result
2019-06-1819-22301-435799.70 ppb
2019-08-152.00 ppb
2019-09-0530.0 ppb
2019-09-1019-34698-670340.500 ppb
2019-12-1719-47900-930170.990 ppb
2020-03-1020-08660-169060.400 ppb
2023-06-274486113ND
2023-06-27447271560.5 ppb